That looks nice for the $$, looks like it might be a problem to go bigger, as the speed controls have some extra wires. Do you have the test unit yet? Have a friend that wants a tri, but with his skill level of building, this may be a better choice.

I would try put together the whole thing using stock stuff and do the RTF (Ready To Fly) out of box report first ... then do any improvements later (I do agree on the two bladed approach). That will give an unbiased comparison.